CN104051106A - Boron-oxide-based ferrite core material used for transformer - Google Patents
Boron-oxide-based ferrite core material used for transformer Download PDFInfo
- Publication number
- CN104051106A CN104051106A CN201410283317.0A CN201410283317A CN104051106A CN 104051106 A CN104051106 A CN 104051106A CN 201410283317 A CN201410283317 A CN 201410283317A CN 104051106 A CN104051106 A CN 104051106A
- Authority
- CN
- China
- Prior art keywords
- mol
- core material
- oxide
- ferrite core
- mixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a boron-oxide-based ferrite core material used for a transformer. The boron-oxide-based ferrite core material comprises main materials and additives. The main materials comprise, by molar ratio, 58.3 mol to 65 mol of Fe2O3, 16.3 mol to 20 mol of manganese oxide, 11.4 mol to 15 mol of zinc oxide, 0.1 mol to 0.2 mol of tungsten trioxide, 0.2 mol to 0.3 mol of aluminum oxide and 0.01 mol to 0.02 mol of rare-earth composite magnetic powder. The additives comprise, by weight ratio of components to the ferrite core material, 50 ppm to 60 ppm of molybdenum trioxide, 30 ppm to 40 ppm of aluminum silicate and 60 ppm to 70 ppm of zirconium dioxide. The rare-earth composite magnetic powder added into the boron-oxide-based ferrite core material is high in magnetic energy product, stable in magnetism and simple in preparing method, and the finished product has the advantages of being high in crystal boundary resistivity, low in gas hole ratio and large and even in crystal particle.
Description
?
Technical field
The present invention relates generally to oxidate magnetic material and manufactures field, relates in particular to a kind of boron oxide based ferrite core material for transformer.
Background technology
Along with the communication technology and the digitized development of electronic product; soft magnetic ferrite and element have been proposed to new requirement; high-performance high magnetic permeability magnetic core is widely used in each type telecommunications and information stock, as the fields such as common-mode filter, pulsactor, current transformer, earth leakage protective device, insulating transformer, signal and pulse transformer are widely applied.Telecommunications industry needs FERRITE CORE to have low core loss and high magnetic permeability now, and to meet microminiaturization and the high efficiency requirement of present electric equipment, existing magnetic core is difficult to meet above-mentioned requirements;
Its magnetic energy product of the permanent magnetic material that rare earth makes can reach 150 times of carbon steel, 3～5 times of Al-Ni-Co permanent magnet material, 8～10 times of permanent-magnet ferrite, and temperature coefficient is low, magnetic stability, coercive force is up to 800 kilo-ampere/rice.Be mainly used in the magnetic system of low speed torque motor, actuating motor, transducer, magnetic bearing etc.Nd-Fe-Bo permanent magnet material is third generation rare earth permanent-magnetic material, and its remanent magnetism, coercive force and maximum magnetic energy product are higher than the former, non-friable, has good mechanical performance, and alloy density is low, is conducive to lightness, slimming, the small-sized and subminaturization of magnetic element.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, and a kind of boron oxide based ferrite core material for transformer is provided.
The present invention is achieved by the following technical solutions:
A kind of boron oxide based ferrite core material for transformer, it comprises major ingredient and additive, and described major ingredient comprises according to mol ratio: the aluminium oxide of the zinc oxide of the Fe2O3 of 58.3-65 mol, the manganese oxide of 16.3-20 mol, 11.4-15 mol, the tungstic acid of 0.1-0.2mol, 0.2-0.3 mol, the rare earth compounded magnetic conductive powder of 0.01-0.02 mol; Additive comprises according to the weight ratio meter that accounts for described ferrite magnetic core material: the zirconium dioxide of the molybdenum trioxide of 50-60ppm, the alumina silicate of 30-40ppm, 60-70ppm;
The preparation of described rare earth compounded magnetic conductive powder comprises the following steps:
The preparation of premixed liquid:
Described premixed liquid is made up of the raw material of following weight parts: boron oxide 91-100, bamboo charcoal powder 3-4, sodium carboxymethylcellulose 1-2, silester 2-3, deionized water 200-300;
Boron oxide is mixed with bamboo charcoal powder, at 700-800 DEG C, calcine 30-40 minute, add silester after being cooled to normal temperature, being ground to fineness is 40-100 μ m;
Sodium carboxymethylcellulose is joined in deionized water, stir;
Above-mentioned each raw material after treatment is mixed, and 500-800 rev/min of dispersed with stirring 10-20 minute, obtains premixed liquid;
The trimethylolpropane that is 1-2:5-7:100 by mass ratio, stearic acid, neodymia mix, at 58-65 DEG C, be uniformly mixed 30-40 minute, adding concentration is the acetic acid of 10-20%, 70-100 rev/min of dispersed with stirring 4-6 minute, add ammonium fluoride, be uniformly mixed 20-30 minute, add premixed liquid, 400-500 rev/min of dispersed with stirring 1-2 hour, dry 20-30 minute at 80-100 DEG C, send into sintering furnace, sintering 4-6 hour at 300-350 DEG C, obtains described rare earth compounded magnetic conductive powder;
The mol ratio of described neodymia, acetic acid, ammonium fluoride is 2-3:6-7:1-2;
Described boron oxide and the mass ratio of neodymia are 40-60:1.
For a preparation method for the boron oxide based ferrite core material of transformer, comprise the following steps:
(1) above-mentioned major ingredient is sent into blending tank, 2500-3000 rev/min is stirred mixed 2-4 hour, sends into grinding pot, being ground to fineness is 50-70 μ m, add water, the sodium pyrophosphate of 2-3%, the 1-2% acrylic acid of major ingredient weight 25-30%, high-speed stirred is mixed, and obtains slurries;
(2) additive is sent into grinding pot, add the tributyl citrate of weight of additive 1-2.3%, being ground to fineness is 60-100 μ m;
(3) above-mentioned each raw material after treatment is mixed, stir, spraying is dry, is pressed into base, and sintering obtains the described boron oxide based ferrite core material for transformer.
Advantage of the present invention is:
The rare earth compounded magnetic conductive powder magnetic energy product that ferrite magnetic core material of the present invention adds is high, magnetic stability, and preparation method is simple, and it is high that finished product has grain boundary resistance rate, and the porosity is low, mechanical performance is strong, and crystal grain is feature greatly and uniformly.
Embodiment
Embodiment 1
A kind of boron oxide based ferrite core material for transformer, it is characterized in that it comprises major ingredient and additive, described major ingredient comprises according to mol ratio: the aluminium oxide of the zinc oxide of the Fe2O3 of 58.3mol, the manganese oxide of 16.3mol, 11.4 mol, the tungstic acid of 0.2mol, 0.3 mol, the rare earth compounded magnetic conductive powder of 0.02 mol; Additive comprises according to the weight ratio meter that accounts for described ferrite magnetic core material: the zirconium dioxide of the molybdenum trioxide of 60ppm, the alumina silicate of 40ppm, 70ppm;
The preparation of described rare earth compounded magnetic conductive powder comprises the following steps:
The preparation of premixed liquid:
Described premixed liquid is made up of the raw material of following weight parts: boron oxide 100, bamboo charcoal powder 4, sodium carboxymethylcellulose 2, silester 2, deionized water 300;
Boron oxide is mixed with bamboo charcoal powder, calcine 30 minutes at 800 DEG C, add silester after being cooled to normal temperature, being ground to fineness is 100 μ m;
Sodium carboxymethylcellulose is joined in deionized water, stir;
Above-mentioned each raw material after treatment is mixed, and 800 revs/min of dispersed with stirring 20 minutes, obtain premixed liquid;
The trimethylolpropane that is 1:7:100 by mass ratio, stearic acid, neodymia mix, at 65 DEG C, be uniformly mixed 40 minutes, adding concentration is 20% acetic acid, 100 revs/min of dispersed with stirring 6 minutes, add ammonium fluoride, be uniformly mixed 30 minutes, add premixed liquid, 500 revs/min of dispersed with stirring 1 hour, at 100 DEG C, be dried 30 minutes, send into sintering furnace, sintering 6 hours, obtains described rare earth compounded magnetic conductive powder at 350 DEG C;
The mol ratio of described neodymia, acetic acid, ammonium fluoride is 3:7:1;
Described boron oxide and the mass ratio of neodymia are 60:1.
For a preparation method for the boron oxide based ferrite core material of transformer, comprise the following steps:
(1) above-mentioned major ingredient is sent into blending tank, 3000 revs/min are stirred mixed 2 hours, send into grinding pot, and being ground to fineness is 70 μ m, adds the water of major ingredient weight 30%, 3% sodium pyrophosphate, 2% acrylic acid, and high-speed stirred is mixed, and obtains slurries;
(2) additive is sent into grinding pot, add the tributyl citrate of weight of additive 2.3%, being ground to fineness is 100 μ m;
(3) above-mentioned each raw material after treatment is mixed, stir, spraying is dry, is pressed into base, and sintering obtains the described boron oxide based ferrite core material for transformer.
Through detection, the basic mechanical design feature index that the product of above-described embodiment 1 gained reaches:
The initial permeability of magnetic core of the present invention is greater than 2700 μ i;
Maximum magnetic flux core loss (100Kc, 200mT) unit: KW/m
3: 390 (100 ± 2 DEG C);
Curie temperature is higher than 240 DEG C.
Claims (2)
1. the boron oxide based ferrite core material for transformer, it is characterized in that it comprises major ingredient and additive, described major ingredient comprises according to mol ratio: the aluminium oxide of the zinc oxide of the Fe2O3 of 58.3-65 mol, the manganese oxide of 16.3-20 mol, 11.4-15 mol, the tungstic acid of 0.1-0.2mol, 0.2-0.3 mol, the rare earth compounded magnetic conductive powder of 0.01-0.02 mol; Additive comprises according to the weight ratio meter that accounts for described ferrite magnetic core material: the zirconium dioxide of the molybdenum trioxide of 50-60ppm, the alumina silicate of 30-40ppm, 60-70ppm;
The preparation of described rare earth compounded magnetic conductive powder comprises the following steps:
The preparation of premixed liquid:
Described premixed liquid is made up of the raw material of following weight parts: boron oxide 91-100, bamboo charcoal powder 3-4, sodium carboxymethylcellulose 1-2, silester 2-3, deionized water 200-300;
Boron oxide is mixed with bamboo charcoal powder, at 700-800 DEG C, calcine 30-40 minute, add silester after being cooled to normal temperature, being ground to fineness is 40-100 μ m;
Sodium carboxymethylcellulose is joined in deionized water, stir;
Above-mentioned each raw material after treatment is mixed, and 500-800 rev/min of dispersed with stirring 10-20 minute, obtains premixed liquid;
The trimethylolpropane that is 1-2:5-7:100 by mass ratio, stearic acid, neodymia mix, at 58-65 DEG C, be uniformly mixed 30-40 minute, adding concentration is the acetic acid of 10-20%, 70-100 rev/min of dispersed with stirring 4-6 minute, add ammonium fluoride, be uniformly mixed 20-30 minute, add premixed liquid, 400-500 rev/min of dispersed with stirring 1-2 hour, dry 20-30 minute at 80-100 DEG C, send into sintering furnace, sintering 4-6 hour at 300-350 DEG C, obtains described rare earth compounded magnetic conductive powder;
The mol ratio of described neodymia, acetic acid, ammonium fluoride is 2-3:6-7:1-2;
Described boron oxide and the mass ratio of neodymia are 40-60:1.
2. a preparation method for the boron oxide based ferrite core material for transformer as claimed in claim 1, is characterized in that comprising the following steps:
(1) above-mentioned major ingredient is sent into blending tank, 2500-3000 rev/min is stirred mixed 2-4 hour, sends into grinding pot, being ground to fineness is 50-70 μ m, add water, the sodium pyrophosphate of 2-3%, the 1-2% acrylic acid of major ingredient weight 25-30%, high-speed stirred is mixed, and obtains slurries;
(2) additive is sent into grinding pot, add the tributyl citrate of weight of additive 1-2.3%, being ground to fineness is 60-100 μ m;
(3) above-mentioned each raw material after treatment is mixed, stir, spraying is dry, is pressed into base, and sintering obtains the described boron oxide based ferrite core material for transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410283317.0A CN104051106B (en) | 2014-06-24 | 2014-06-24 | A kind of boron oxide based ferrite core material for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410283317.0A CN104051106B (en) | 2014-06-24 | 2014-06-24 | A kind of boron oxide based ferrite core material for transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104051106A true CN104051106A (en) | 2014-09-17 |
| CN104051106B CN104051106B (en) | 2016-08-24 |
Family
ID=51503816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410283317.0A Active CN104051106B (en) | 2014-06-24 | 2014-06-24 | A kind of boron oxide based ferrite core material for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104051106B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332269A (en) * | 2014-09-28 | 2015-02-04 | 安徽欧瑞达电器科技有限公司 | Wollastonite-based ferrite core material for transformers |
| CN104361970A (en) * | 2014-10-16 | 2015-02-18 | 安徽德信电气有限公司 | Magnesium-based ferrite core material for transformer |
| CN104387048A (en) * | 2014-10-16 | 2015-03-04 | 安徽德信电气有限公司 | Tin-based ferrite magnetic core material for transformers |
| CN104926295A (en) * | 2015-05-09 | 2015-09-23 | 南通保来利轴承有限公司 | Preparation method of rare earth ferrite material |
| CN106252015A (en) * | 2016-08-17 | 2016-12-21 | 安徽德信电气有限公司 | A kind of various coil ferrite core material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3926858A (en) * | 1973-07-13 | 1975-12-16 | Tokyo Shibaura Electric Co | Moisture sensitive element |
| EP0980856A1 (en) * | 1998-08-19 | 2000-02-23 | Minebea Co., Ltd. | A Mn-Zn Ferrite |
| CN1783362A (en) * | 2004-12-03 | 2006-06-07 | 上海宝钢天通磁业有限公司 | Method for preparing manganese-zinc-ferrite powder with superhigh magnetic conductivity |
| CN101388269A (en) * | 2008-07-11 | 2009-03-18 | 临沂中瑞电子有限公司 | Manganese zinc ferrite of high magnetic conductivity high saturation magnetic flux density high Curie temperature |
| CN102408227A (en) * | 2011-08-19 | 2012-04-11 | 湖南阳东磁性材料有限公司 | Manganese zinc material with high magnetic permeability and sintering method thereof |
-
2014
- 2014-06-24 CN CN201410283317.0A patent/CN104051106B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3926858A (en) * | 1973-07-13 | 1975-12-16 | Tokyo Shibaura Electric Co | Moisture sensitive element |
| EP0980856A1 (en) * | 1998-08-19 | 2000-02-23 | Minebea Co., Ltd. | A Mn-Zn Ferrite |
| CN1783362A (en) * | 2004-12-03 | 2006-06-07 | 上海宝钢天通磁业有限公司 | Method for preparing manganese-zinc-ferrite powder with superhigh magnetic conductivity |
| CN101388269A (en) * | 2008-07-11 | 2009-03-18 | 临沂中瑞电子有限公司 | Manganese zinc ferrite of high magnetic conductivity high saturation magnetic flux density high Curie temperature |
| CN102408227A (en) * | 2011-08-19 | 2012-04-11 | 湖南阳东磁性材料有限公司 | Manganese zinc material with high magnetic permeability and sintering method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332269A (en) * | 2014-09-28 | 2015-02-04 | 安徽欧瑞达电器科技有限公司 | Wollastonite-based ferrite core material for transformers |
| CN104361970A (en) * | 2014-10-16 | 2015-02-18 | 安徽德信电气有限公司 | Magnesium-based ferrite core material for transformer |
| CN104387048A (en) * | 2014-10-16 | 2015-03-04 | 安徽德信电气有限公司 | Tin-based ferrite magnetic core material for transformers |
| CN104926295A (en) * | 2015-05-09 | 2015-09-23 | 南通保来利轴承有限公司 | Preparation method of rare earth ferrite material |
| CN104926295B (en) * | 2015-05-09 | 2017-06-23 | 南通保来利轴承有限公司 | A kind of preparation method of rare-earth ferrite material |
| CN106252015A (en) * | 2016-08-17 | 2016-12-21 | 安徽德信电气有限公司 | A kind of various coil ferrite core material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104051106B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104045337B (en) | A kind of vanadium based ferrite core material for transformer | |
| CN104051106B (en) | A kind of boron oxide based ferrite core material for transformer | |
| CN104091671A (en) | Titanium-based rare earth ferromagnetic core material | |
| CN104051109B (en) | A kind of molybdenio ferrite core material for transformator | |
| CN104051108B (en) | A kind of nickel oxide-base ferrite core material for transformer | |
| CN104051112A (en) | Manganese-based ferrite core material used for transformer | |
| CN104361969A (en) | Cerium-based ferrite core material for transformer | |
| CN104078186A (en) | Zinc-base ferrite core material | |
| CN104051111A (en) | Zirconium-based ferrite core material used for transformer | |
| CN104051115B (en) | A kind of niobium based ferrite core material for transformer | |
| CN104045334B (en) | A kind of rare-earth ferrite core material for transformer | |
| CN104269240A (en) | Tungsten ferrite core material for transformer | |
| CN104051110A (en) | Cobalt-based ferrite core materials | |
| CN104051113B (en) | A kind of Ni-based ferrite core material for transformator | |
| CN104058739B (en) | Tantalum-based ferrite magnetic core material used for transformer | |
| CN104124027B (en) | A kind of cobalt silicon base lanthanon ferromagnetic core material | |
| CN104051107A (en) | Titanium-based ferrite core material used for transformer | |
| CN104051114B (en) | A kind of transformer chromium based ferrite core material | |
| CN104402421A (en) | Maifanite base ferrite magnetic core material for transformer | |
| CN104332269A (en) | Wollastonite-based ferrite core material for transformers | |
| CN104078185A (en) | Cobaltous oxide based ferrite core material | |
| CN104319052A (en) | Silicon-based ferrite magnetic core material for transformer | |
| CN104124025A (en) | Silicon-based rare earth ferromagnetic core material | |
| CN104064311A (en) | Silicon carbide-based ferrite magnetic core material for transformer | |
| CN104091677A (en) | Iron silicon-based rare earth ferromagnetic core material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 244000 Private Industrial Park, Tongling Bridge Economic Development Zone, Anhui, Tongling Patentee after: Tongling Sanjia transformer Polytron Technologies Inc Address before: 244000 Anhui province Tongling suburb Bridge Economic Development Private Industrial Park Patentee before: Tongling Sanjia Transformer Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180320 Address after: No. 1, No. 1, No. 120, Taishan Avenue, Tongling economic and Technological Development Zone, Anhui Province Patentee after: TONGLING RUIBO ELECTRONIC TECHNOLOGY CO., LTD. Address before: 244000 Private Industrial Park, Tongling Bridge Economic Development Zone, Anhui, Tongling Patentee before: Tongling Sanjia transformer Polytron Technologies Inc |
|
| TR01 | Transfer of patent right |